Home / 420,015.60-579,363.84-268,850.16

Finding the Fourth Proportional to 420,015.60, 579,363.84 and 268,850.16

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Solution

The fourth proportional to 420,015.60, 579,363.84 and 268,850.16 is: 370,848.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,015.60 : 579,363.84 = 268,850.16 : x
  2. Step 2: Convert to fraction form
    420,015.60/579,363.84 = 268,850.16/x
  3. Step 3: Cross multiply
    420,015.60x = 579,363.84 × 268,850.16
  4. Step 4: Simplify right side
    420,015.60x = 155,762,061,082.21
  5. Step 5: Solve for x
    x = 155,762,061,082.21/420,015.60
  6. Step 6: Final answer
    x = 370,848.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.